JPH02117555U - - Google Patents
Info
- Publication number
- JPH02117555U JPH02117555U JP2744689U JP2744689U JPH02117555U JP H02117555 U JPH02117555 U JP H02117555U JP 2744689 U JP2744689 U JP 2744689U JP 2744689 U JP2744689 U JP 2744689U JP H02117555 U JPH02117555 U JP H02117555U
- Authority
- JP
- Japan
- Prior art keywords
- light
- shielding plate
- light shielding
- document
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003384 imaging method Methods 0.000 claims description 2
- 238000005286 illumination Methods 0.000 claims 2
- 230000036316 preload Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
Description
第１図はこの考案の一実施例の要部を拡大して
示す正面図、第２図は第１図の矢示−方向か
ら見た全体の構成を示す平面図、第３図はこの考
案の他の実施例を示す平面図、第４図及び第５図
は第１図に示した実施例の調整機構のそれぞれ異
なる変形例を拡大して示す断面図、第６図は電子
複写機のトナーのγ特性の一例を示す線図である
。
１……コンタクトガラス、２……２楕円反射板
、３，１３……光源、４……補助反射板、５，１
５……遮光板、６……固定ねじ、７……調整ねじ
、８……光軸、９……反射光束、１０……第１ミ
ラー、１２……１楕円反射板、１４……反射板ブ
ラケツト、１６……等倍結像レンズ、１７……感
光体、１８……コイルばね、１９……皿ばね。
Figure 1 is a front view showing an enlarged main part of an embodiment of this invention, Figure 2 is a plan view showing the overall configuration as seen from the direction indicated by the arrow in Figure 1, and Figure 3 is a front view of this invention. 4 and 5 are enlarged sectional views showing different modifications of the adjustment mechanism of the embodiment shown in FIG. 1, and FIG. FIG. 2 is a diagram showing an example of γ characteristics of toner. 1... Contact glass, 2... 2 elliptical reflector, 3, 13... Light source, 4... Auxiliary reflector, 5, 1
5... Light shielding plate, 6... Fixing screw, 7... Adjustment screw, 8... Optical axis, 9... Reflected light flux, 10... First mirror, 12... 1 elliptical reflector, 14... Reflector plate Bracket, 16... Same-magnification imaging lens, 17... Photoreceptor, 18... Coil spring, 19... Belleville spring.
Claims (1)
走査される原稿面を焦点面に結像させる結像レン
ズと、前記光源からの直射光の一部又は前記反射
板からの反射光の一部を遮光して照度むらを除去
する遮光板とを有する原稿照明装置において、前
記遮光板と固定部材との間に該遮光板を微動し得
る調整ねじを係着したことを特徴とする原稿照明
装置。 ２ 遮光板と固定部材との間に調整ねじの遊びを
除去するための予圧部材を係着した請求項１記載
の原稿照明装置。[Claims for Utility Model Registration] 1. A light source equipped with a reflector, an imaging lens that forms an image of the document surface slit-scanned by the light source on a focal plane, and a portion of the direct light from the light source or the reflected light. In a document illuminating device having a light shielding plate that blocks part of the reflected light from the plate to remove uneven illuminance, an adjustment screw that can slightly move the light shielding plate is engaged between the light shielding plate and the fixing member. A document illumination device characterized by: 2. The document illumination device according to claim 1, further comprising a preload member interposed between the light shielding plate and the fixing member to eliminate play in the adjustment screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2744689U JPH02117555U (en) | 1989-03-10 | 1989-03-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2744689U JPH02117555U (en) | 1989-03-10 | 1989-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02117555U true JPH02117555U (en) | 1990-09-20 |
Family
ID=31249946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2744689U Pending JPH02117555U (en) | 1989-03-10 | 1989-03-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02117555U (en) |
-
1989
- 1989-03-10 JP JP2744689U patent/JPH02117555U/ja active Pending
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